Chocolate bar



FIG. 1 is a perspective view of a chocolate bar embodying our new design;

FIG. 2 is a side view of the chocolate bar, the opposite side view being a mirror image thereof;

FIG. 3 is a top view of the chocolate bar; and,

FIG. 4 is an end view of the chocolate bar as seen from the right-hand side of FIG. 2, the opposite end view being a mirror image thereof.

The bottom of the chocolate bar is unadorned and does not form a part of the claimed design. 

The ornamental design for a chocolate bar, as shown and described. 